When I see a knowledge panel result, I expect everything within it to relate to a single entity, regardless of name collisions. If it doesn't, that's incorrect. If it's too hard to disambiguate, it's better to not have the knowledge panel at all.
That said, I did this search just now. https://imgur.com/a/zEjrfte The top organic result is the author's X bio and has his profile pic in the search results page. To the right of it (across a gutter) is the knowledge panel about the physicist. I could see how one might get confused, but the X profile pic is just near the knowledge panel, not actually in it. So if this is what the author saw, I don't agree with the article. It'd be nice if he included an actual screenshot of what he's describing, instead of the cute "Why is Google..." thing.